Make wheel storage argument optional for disk usage commands (#23404)

Also fix master workflow by pointing it explicitly at the stable storage

Author: iliakur

.github/workflows/measure-disk-usage-master.yml

@@ -16,6 +16,7 @@ on:
 
 env:
   PYTHON_VERSION: "3.13"
+  INTEGRATIONS_WHEELS_STORAGE: "stable"
 
 jobs:
   measure-disk-usage:

ddev/src/ddev/cli/size/utils/common_params.py

@@ -27,7 +27,7 @@ def common_params(func: Callable) -> Callable:
     @click.option(
         "--wheels-storage",
         type=click.Choice(["dev", "stable"]),
-        required=True,
+        default='dev',  # 'dev' is a strict superset of 'stable', so we're more likely to find wheels there.
         envvar="INTEGRATIONS_WHEELS_STORAGE",
         help=(
             "Which wheel storage tier to resolve dependency URLs against. "